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Journal of Virology, August 1999, p. 7087-7092, Vol. 73, No. 8
Cell Genesys, Foster City, California 94404
Received 12 October 1998/Accepted 15 April 1999
The interaction of human immunodeficiency virus (HIV)-derived
vectors with wild-type virus was analyzed in transduced cells. Vector
transcripts upregulated by infection had no measurable effect on HIV
type 1 (HIV-1) expression but competed efficiently for
encapsidation, inhibiting the infectivity and spread of HIV-1 in culture and leading to mobilization and recombination of
the vector. These effects were abrogated with a
self-inactivating vector.
0022-538X/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Interaction of Human Immunodeficiency Virus-Derived
Vectors with Wild-Type Virus in Transduced Cells
*
Corresponding author. Present address: Laboratory for
Gene Transfer and Therapy, IRCC Institute for Cancer Research,
University of Torino Medical School, S.P. 142, 10060 Candiolo (Torino),
Italy. Phone: 39-011-993.3226. Fax: 39-011-993.3225. E-mail:
lnaldini{at}ircc.unito.it.
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